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Date:      Tue, 3 Jun 1997 10:08:48 +0930 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        darrenr@cyber.com.au (Darren Reed)
Cc:        security@FreeBSD.ORG
Subject:   Re: TCP RST Handling in 2.2 (fwd)
Message-ID:  <199706030038.KAA27794@genesis.atrad.adelaide.edu.au>
In-Reply-To: <199706022238.IAA29632@plum.cyber.com.au> from Darren Reed at "Jun 3, 97 08:38:23 am"

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Darren Reed stands accused of saying:
> 
> Darren
> 
> p.s. I've brought this up because of people's experience with IP Filter
>      which currently won't allow any TCP packets through if they are
>      outside either window (when "keep state" is used).  A case has been
>      presented where the RST being sent back has a 0 ACK field by a
>      non-zero SEQ field.

Speaking of ipfilter, I was trying to help someone build it on a 2.2
box last night.

Have you tested it there recently?  Where do you define
ACTUALLY_LKM_NOT_KERNEL in your LKM source before including
<sys/conf.h>?

(TBH, we both wanted to use ipfilter because they have a mix of
NetBSD/FreeBSD/Solaris systems and your code runs on all of them, but,
well, there's this little problem 8)


-- 
]] Mike Smith, Software Engineer        msmith@gsoft.com.au             [[
]] Genesis Software                     genesis@gsoft.com.au            [[
]] High-speed data acquisition and      (GSM mobile)     0411-222-496   [[
]] realtime instrument control.         (ph)          +61-8-8267-3493   [[
]] Unix hardware collector.             "Where are your PEZ?" The Tick  [[



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